Skip to main content

Endoscopic mucosal resection is a safer, more efficient way to remove large polyps found during a colonoscopy.

If your doctor finds a large polyp or colorectal lesion during your colonoscopy, they may recommend endoscopic mucosal resection to remove it.

What To Expect When You Have Endoscopic Mucosal Resection 

Endoscopic mucosal resection (EMR) is a technique used to remove large colorectal lesions. In the past, the only option to remove large polyps was surgery. But EMR is now considered the safest method for removing this type of polyp.

Endoscopic mucosal resection is usually done during a colonoscopy or flexible sigmoidoscopy. Your doctor will pass a special needle through the colonoscope and insert it under the base of the polyp. Fluid is injected under the polyp producing a small amount of liquid that lifts the polyp off the lining of the bowel. Then, your doctor uses a wire snare (or lasso) to pull the polyp tight while an electric current passes through the snare, cuts the polyp off and cauterizes any blood vessels.

If the polyp is very large, it may be removed in a number of pieces in the same way. Once the polyp has been removed, it is retrieved so that it can be sent to the pathology lab for further analysis.

It can take up to 7 to 10 days before a result is available. Your doctor will work with you to make a decision about further treatment after reviewing results.

Why Choose Inspira for Endoscopic Mucosal Resection

Explore More Options

Close up of a pediatrician having a check up on his young patient mark Created with Sketch.

Learn more about our online scheduling and schedule an appointment with your primary care provider today.

High angle view of senior doctors and young surgeons discussing over patient case. Top view of group of doctor in a conversation with copyspace. Doctors and nurses talking to each other about medical results. mark Created with Sketch.

We offer a wide variety of services at our many locations throughout New Jersey, including award-winning obstetrics and gynecology, cancer care and orthopedics.

Portrait of a female doctor working at the hospital wearing a facemask to avoid COVID-19 with staff at the background mark Created with Sketch.

World class care is in your backyard. Learn more about our local and nationally renowned physicians.